Boiler-flue cleaner.



- ably 1n pipe-connection with the boiler steam.-

entrain STATES r rnn'r ,oFFroE.

ANDREAS GRONVALD. or MILwaUK nWIscoNsIN, ASSIGNOR To JOSEPH J.ZIMMERMANN,

' or MILWAUKEE, WISCONSIN.

BOILER-BLUE. CLEANER.

No. season To all whom it may concern:

Be it known that I, ANDREAS GRoNvA D, a subj ect of the King of Norway,and resident of Milwaukee, in the county. of Milwaukee and State ofWisconsin, have invented certain new and useful Improvements in Boiler-Flue Cleaners; and I do hereby declare that the following is a full,clear, and exact description thereof.

The object of my invention is to rovide a simple, economical, andeffective evice for cleaning boiler-fiues, its construction andarrangement being such that by a system of steam-pipes in connectionwith a header, live-steam is admitted into a series of boilertubes,constituting a division of the whole, whereby the series of boiler-tubesare. cleaned or blown out, independent of the remaining.boilertubes,which tubes are similarly divided into series and connected to the system of steam-pipes but independent of each other.

The invention therefore consists in various details of construction andcombination of parts as hereinafter. fully set forth with reference tothe acoom anying drawings and subsc uently claimed n the drawings:Figure 1 represents a sec tional front elevation of a steam-boiler ha"-ing attached thereto a flue-cleaner embodyl 1g the features of myinvention, and Fig.2, a detail longitudinal section of the same, asindicated by line 2-2 of Fig. 1.

" Referring by numeral to the drawings, 1

indicates a StCEtHln-bOilQl' supported in the masonry walls 2, theboiler being provided with the usual lines 3 at suitably spacedintervals. Directly outside of one of the walls 2 is a verticallydisposed valve-controlled steam-supply pipe or header 4, which header ispreferdome not shown. Connected to the lower end of the header, b' abranch-pipe 4, is a horizontally disposer lead-pipe 5, which pipeextends across the front of the boiler-head just above the top row offlues and is 1provided with a cap at its opposite end, t iere beingintermediate plugs .6 fitted into the pipe whereby separate divisionsare obtained therein. Each division of the lead-pipe 5 is provided witha series of dep'endingtubes 7,

i Specification of Letters Patent:

Application filed. March 16, 1908.

Patented 1111102 1908.

Serial No. 421,569.

closed at their lower ends and having series of in number to theboiler-fines, which uesare directly opposite the depending tubes.

As shown in the drawings, the lead-pipe is separated into threedivisions a, b, 0, re-

spectively by the plugs, the first division (1.

each branch-pipe having fitted therein a' valve 11, which valve togetherwith the valye 8 serves to admit live-steam to division's'a,

'b, c, of the pipe 5, independent of each other.

From the foregoing description it will be readily understood that byopening any one of the valves, steam will be admitted into thecorresponding division of the lead-pipe 5, and through its dependingtubes to one series of boiler-Hues, after thoroughly blowing out thesame the valve is closed, the o eration being repeated in the nextseries of ues, and so on until the entire boiler has been cleaned. Thusby simply operating a valve, the steam is admitted in any one of theseries independently, it being understood that any number of series maybe employed by interposing a greater or less number of plugs in thelead-pipe and providing a corresponding number of branches in connectionwith the header.

I claim:

1. A boiler-flue cleaner comprising a vertically disposed header, ahorizontal leadpipe extending forward of-the boiler-head, plugs fittedin the lead-pipe, whereby sepaperforations alined with and corres ondmgrate divisionsare formed therein, serles of perforated depending tubesextending from said lead-pipe, branch-pipes connecting the divisionsof'the aforesaid lead-pipe with the header, and an independentcontrollingvalve for each branch-pipe interposed be separate divisionsare formed therein, 86-,

riesof perforated depending tubes extending from said leadipe,branch-pipes connecting the county of Milwaukee and State of Wiseon thedivisions of the aforesaid lead-pipe with sin in the presence of twowitnesses.

the header and an independent eontrolling- Y valve for each branch-pipeinterposed be- ABDREAS GRONVALD 5 tween the header and branch-pipes.'VVitnesses:

' In testimony that I claim the foregoing 1 GE(). W. YOUNG,

have hereunto set my hand at Milwaukee, in JOSEPH J. ZIMMERMANN'.

